Blood Circulation

2. BLOOD CIRCULATION AND TRANSPORTION. vena cava

Pulmonary vein

From body right atrium Tricuspid valve right ventricle

Pulmonar y artery to lungs

s e m i l u n a r

From lungs

left atrium Bicuspid valve left ventricle More thicker aorta to body

2. BLOOD CIRCULATION AND TRANSPORTION. Structure of Heart

Lungs

Vena cava

Pulmonary vein

Pulmonary circulation

Deoxygenat ed blood

Oxygenated blood

Systemic circulation

Pulmonary artery

aorta

Body organs

Type of Blood Vessel

1. Figure below shows the structure of blood flow in the human circulation system.

(a). Label the following structure in figure above. Aorta

Pulmonary artery Vena Cava Pulmonary vein (b). Mark using arrows to show the flow of oxygenated blood and using arrows to show the flow deoxygenated blood. (c). State two characteristics of the blood vessel which transport blood from the heart. (i) ._____________________________________________________. (ii)._____________________________________________________.

(d). State two characteristics of the blood vessel which transport blood to the heart. (i) ._________________________________________________________. (ii)._________________________________________________________.

2. Figure above shows the structure of blood vessels. (a). Label the structure of the blood vessels. Artery

Vein Capillary

(b). State the difference in size of wall between blood vessel labelled P and R. __________________________________________________________. __________________________________________________________. (c). Explain your answer in (b). __________________________________________________________ __________________________________________________________. (d). In which blood vessels, the valves present? __________________________________________________________. __________________________________________________________. (e). Explain the process that occurs in the blood vessels labelled Q. __________________________________________________________. __________________________________________________________.

Student

Blood group of student

Janet

A

Salmah

O

Manir

AB

Sagaran

B

1. The table , which student can donate blood to accident Sagaran, Salmah victim who has blood group B?:Salmah ________, ___________________________ Salmah, Sagaran, Manir blood group O?:Janet, ____________________________________ blood group AB?:____________________________________ 2. If the student themselves need blood transfusion, state A,B,O and AB the blood B,O A,O can receive from. O groups they Sagaran :___________________ Manir : ______________________ A personSalmah can donate blood to Janet :___________________ : person can receive blood from recipient. ______________________ A donor. 3. (i). What is meant by a

(ii). From the table, identify the student who is a Salmah Universal donor :__________________________ Manir. Universal recipient: __________________________ 4. The blood of a donor is usually drawn from a vein in the arm. Explain Veins haveisthinner arteries. flow of why blood drawnwalls from than a vein and notThe an artery. blood in a vein is slower. ________________________________________________________ ________________________________________________________